Do I need to change my phone and computer manually?

No. Any device that syncs its time over the internet updates itself. Car clocks, ovens, microwaves and older wall clocks usually need doing by hand.

Time Change California 2026

Name: Fall Back 2026 - California
Start: 2026-11-01
End: 2026-11-01
Location: California

2026 time change dates for California

Clocks go forward: Sunday, March 8, 2026

At 2:00 AM the clocks jump straight to 3:00 AM in California. That hour never happens, and everyone loses an hour of sleep.

Clocks go back: Sunday, November 1, 2026

At 2:00 AM the clocks return to 1:00 AM, so that hour is lived through twice and the night is an hour longer.

California keeps PST in winter and shifts one hour forward for the summer.

Countdown to the next change

Health Considerations for California Residents

The spring transition is the one that hurts. A study in Open Heart found the risk of heart attack rose by about 24% on the Monday after clocks went forward, before falling back to normal within the week. Research published in Current Biology found a 6% rise in fatal traffic accidents in the week following the spring change, with the effect strongest in the morning and in the western parts of time zones.

The autumn change, when most people gain an hour, shows no comparable spike. Researchers attribute the difference to sleep loss rather than to the clock change itself.

Health Tip: Shift your bedtime 15 minutes earlier each night for the four nights before the spring change, so the hour is absorbed gradually rather than lost all at once.

Agricultural Considerations

The story that DST was introduced for farmers has it exactly backwards. Farmers in California and elsewhere were among its most persistent opponents, and the American farm lobby successfully campaigned to have national DST repealed after the First World War.

The reason is straightforward: farm work follows the sun, not the clock. Moving the clock forward just means doing the same work an hour earlier by the clock, while deliveries, markets and hired labour all shift with it. Dairy farmers make the point most often, since cows keep to their own schedule and take several days to adjust to a changed milking time.

Background

Roughly 70 countries use some form of DST, but they are concentrated in Europe and North America. Most of Africa and Asia do not.
The spring transition is associated with a measurable short-term rise in heart attacks and fatal traffic crashes, an effect researchers attribute to the lost hour of sleep rather than the clock itself.
Benjamin Franklin is often credited with inventing DST, but his 1784 essay was satire — he joked that Parisians could save candles by waking earlier. The modern proposal came from New Zealander George Hudson in 1895 and Briton William Willett in 1907.

Tips for California

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Remember that not all countries change on the same date - check international meeting times carefully.

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Use the phrase 'Spring forward, fall back' to remember which direction to change your clocks.

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Be extra cautious driving the Monday after the spring time change - accident rates increase.

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Update your car clock, microwave, and other manual clocks that don't auto-update.

Frequently asked questions

When do the clocks change in California in 2026?

Clocks go forward on Sunday, March 8, 2026 and back on Sunday, November 1, 2026.

Which way do the clocks go?

"Spring forward, fall back" is the usual mnemonic: forward one hour in spring, back one hour in autumn.

Do I have to change anything myself?

Phones, computers and anything that syncs over the internet update on their own. Car clocks, ovens, microwaves and older wall clocks generally do not.

Is Daylight Saving Time being scrapped?

It has been proposed in many places and adopted in few. The European Parliament voted in 2019 to end mandatory clock changes and the change has stalled; in the United States the Sunshine Protection Act has repeatedly passed the Senate without becoming law. Most of the world that changes its clocks is still changing them.